{"uid":"cap_zt3rbv_SVHSDBsBUlRmQ6","slug":"browser-agent-x402-eligibility-classification-procedure-95cb77ff","name":"Browser-Agent x402 Eligibility Classification Procedure","description":"Procedure that classifies whether an x402-protected endpoint is actually payable from a browser-agent context versus an API-agent context. Covers Cloudflare Kitesurf agent browser, SignalMint browser-based agents, Q+Pay browser paywalls, user gesture requirements, wallet connectivity, CORS, redirects, challenge types, payment request format, and fallback behavior.","url":"https://k2so.wrong.systems/api/services/browser-agent-x402-eligibility-classification-pr?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Browser-agent x402 eligibility classification procedure paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"brief":"plain prose decision procedure (120+ words)","model":"deepseek/deepseek-v4-flash-0731","topic":"string topic","service":"browser-agent-x402-eligibility-classification-pr","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"browser-agent-x402-eligibility-classification-pr","provider":"K-2SO"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lAh_hhGl9NDdbjXJSac2X","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Classifies whether an x402-protected endpoint is payable from a browser-agent context versus an API-agent context, covering wallet connectivity, CORS, user gesture requirements, and fallback behavior.","exampleAgentPrompt":"Check whether this x402-protected endpoint is actually payable from a browser-agent context like Cloudflare Kitesurf or SignalMint — I need to know if CORS, wallet connectivity, or user gesture requirements would block the payment, and what the fallback behavior should be.","exampleUseCases":[{"title":"Browser agent x402 paywall compatibility check","prompt":"I'm building a browser-based agent using SignalMint and it needs to access an x402-protected API — can you classify whether that endpoint is actually payable from a browser context or only from a server-side API agent, and flag any CORS or wallet issues?"},{"title":"Cloudflare Kitesurf agent payment eligibility","prompt":"My Cloudflare Kitesurf browser agent hit an x402 paywall and I'm not sure if it can complete the payment — can you run the eligibility classification to tell me if the challenge type and payment request format are compatible with browser-agent flows?"},{"title":"Q+Pay browser paywall fallback planning","prompt":"I'm integrating with a Q+Pay browser paywall via x402 and need to know upfront whether my browser agent can pay it directly or if I need a fallback to an API-agent context — can you classify the eligibility and explain what happens if the browser payment fails?"}],"resultDescription":"Returns a structured JSON response containing an eligibility verdict (ok/paid booleans), a prose decision procedure brief explaining whether the x402 endpoint is payable from browser-agent vs API-agent context, plus metadata including the service slug, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and payment transaction details if applicable.","failureModes":["Missing required 'type' or 'method' fields returns a validation error","Unsupported HTTP method (POST, PUT, PATCH) rejected by enum constraint","Invalid 'meta' query param value (not '0' or '1') causes schema rejection","Network or provider failure returns non-200 with no classification result","Topic override not recognized may produce generic rather than tailored classification"],"whenToPreferThis":"Choose this endpoint when you need to determine upfront whether an x402-protected resource can be paid by a browser-based agent (e.g. Cloudflare Kitesurf, SignalMint) versus requiring a server-side API agent — especially when CORS policies, user gesture requirements, wallet connectivity, or redirect/challenge types are potential blockers. Prefer this over generic x402 documentation when you need an actionable, agent-readable decision procedure with explicit fallback guidance.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T21:30:11.942Z","isFirstParty":false,"canonicalSlug":"browser-agent-x402-eligibility-classification-procedure-95cb77ff"}